Turbine power plant.



HEINRICH ADAM BHM, OF HAMBURG, GERMANY oirro. y

l TURBINE POWER PLANT.

Specification of Letters Patent.

y Patented Jan. 4, 1916.

Application led June'20, 1914. Serial No. 846,3585.

. To all z/:wm 'it may concern.:

Be it known that I, HEIXRICH ADAM BHM, a subject of the German Emperor,and resident of Hamburg, Germany, whose post-office address is care ofVulcan-IVerke,

Hamburg 9,v Germany, have invented certain new and useful Improvementsin Turbine Power Plants, of which the following is a specification. i

This invention relates to certain improvements in turbine power plants,and more particularly to a type designed for use on ships for driving aplurality of separate propellers. v In carrying out my invention, Iprovide a plurality of turbines and my invention involves the novel andeiiicient arrangement and combination of these turbines with thepropeller shafts orv other driven shafts and intermediate gearing, aportion of which is preferably of the Fttinger hydraulic type. I providea plurality of main turbines preferably one for each propeller andprovide one or more cruising turbines which may be operated either incombination with .the ,main turbines or independently thereof, foreither slow speed or rearward propulsion as will 'be more partic'ularlyhereinafter pointed out.

Reference is to be had to the accompanying drawings forming part of thisspecification, and in which similar reference characters indicatecorresponding parts in the sev'- eral views and in which;

Figure 1 is a somewhat diagrammatic plan view ofl a turbine plant havingtwo main turbines and a cruising turbine associated with oneof them.Fig. 2 is a similar view of a turbine plant having two cruising turbinesone associated with each of the two main turbines. Fig. 3 is a plan viewsomewhat similar to that shown in Fig. 2, but with a modified motivefluid circuit, and; Fig. 4 is a plan view of a three propeller plant.

In the specific arrangement illustrated in F igfl, I provide two mainturbines 10 and 11, and two corresponding propeller shafts y 12 and 13,connected thereto by hydraulic D-.O power transmitters 14: and 15. Ihave not -illustrated the details of construction of the turbines as anyVwell known form of steam or gas turbine may be employed and I have notillustrated the details of the hydraulic power transmitters as hereagain various ably varying the flow of the fluid, the driven 'or bybodily swinging the cruising tur- :fforms may be employed.l Thetransmitters` are preferably of the Fttinger type in which' separatedriving and driven wheels are employed, the power being transmitted fromthe former to the latter by a fluid receiving kinetic energy4 from theformer and transmitting it to the latter. By withdraw. ing the liquidfrom the casing the transmission of power is interrupted, and bysuitmember may be caused to rotate in the same l dlrection as thedriving member, or in the opposite direction. In connection with one ofthe main turbines, I employ a cruisingl turbine 18, having mechanicalor`- electrical gearing for transmitting its power to the shaft of themain turbines. This may be either in front of or behind the powertransmitter thereof. As illustrated, the cruising turbine has a pinion17 and loosely mounted on the shaft of the main turbine 11, is a gear 16provided with a sliding 'clutch collar 19 by means of which the gear maybe permitted to' remain at'rest or may be rotated by or from the shaft.The gear 16 is shown between the power transmitter and the propeller..If desired the gear` may be rigidly secured to the shaft and thus actsomewhat as 4va fly wheely and the pinion may be'conneoted to this 854shaft by a clutch, ory the pinion may be moved bodily o ut of the meshwith-the gear either by sliding it along a key on its' shaft bine 18.

, The turbine 11 is providedwith'a suitable supply conduit- 20Y forthesteam'or other motor fluid and with an exhaust conduit. 21 leading toa .main condenser not shown. The other turbine l0 may have a 95 similarsupply conduit 22 leading from the same main and an exhaust conduit 23leading to either the same condenser or to a similar one. The cruisingturbine has a sup-y ply conduit 24, and its exhaust may be sent 1' Jdirectly to the main condenser or to a vseparate condenser,butlpreferably it goes to the inlet of the main turbine 10.

In using the turbine plant illustrated in Fig. 1, the two mainturbinesnormally re- 105 ceive steam at high pressure and operate at high speedto drive the two Vpropellers. through the two hydraulic power transmit-.ters. The steam is preferably delivered to them in parallel, although insome construcand is at rest. The high speed of the turbine is properlyreduced to the desired propellerspeed by the hydraulic powertransmitters. When it is desired to drive the ship at low or cruisingspeed, themain turp bine 'which is directly associated with the vcruising turbine is stoppe'd and disconnected by withdrawing the fluidfrom its transmitter and the clutch is thrown in to connect the cruisingturbine. The valves are turned to drive the other main turbine on theexhaust steam from the cruising turbine. O erating in this manner, the`.turbine 11 'is at rest and power is transmitted from the kcruisingturbine to the propeller shaft 18 and from the main turbine 10 operatingon exhaust steam to the propeller sllfiai't-12. The arrangement shown inFig. 2 1s ve similar to that shown in Fig. 1 except that a secondcruising turbine 26 is provided`V having a pinion 27 adapted to meshwith a gear 28 on the propeller shaft 12. Thus both propellers may `bedriven either through the power transmitters from the main turbinesalone-or through gearing from the two cruising turbines alone.. Thiscruising turbine 26 has its supplyconduit 29 and exhaust conduit 30corresponding to the supply conduit 24 and exhaust conduit cruisingturbine 1,8. Thus in normal |lfull speed forward operation, the twocruising turbines may be thrown into operation, and theexhaust from eachlcruising turbine delivered tothe main turbine of the other?.propeller..- 0f .course if desired, the

` exhausts from both cruising turbines may be sent direct to thecondenser .or condensers and the two main tur ines permitted to standstill. If desired, one of the cruising turbines, for instance theturbine 18`may be designed for forward drive and the other cruisingturbine, that is the turbine 26, may be designed for backward orrearward drive, thus for going at slow speed ahead the turbine 18 andthe turbine 10 may drive the two propellers while for backing at lowspeed the turbine 26 and the turbine 11 may be employed, the directionof flow of fluid in the power transmitter l5 being shifted so as todrive the propeller shaft 13 in the die.

rection oppositel to the rotation of the turbine 11. For backing, it isof course evident that the cruising turbines need not be employed, andthat only the main turbinesv are necessary if both the hydraulic powertransmitters are shifted for reversed rotation.

In the arrangement shown in Fig. 3, I

' provide the same turbines and the samelarrangement of gearing, powertransmltters,

`draulic power transmitters allel and part series Licence as here-shown,is arranged to take the exhaust steam from the other cruising turbine 18by a conduit 31." High pressuresteam may be delivered through theconduits 20 and 22, to the two main turbines or high pressure steam maybe delivered through the conduit 24 to the turbine 18, whose ex haustgoes to the `turbine 26. The exhaust from the turbine 26 may go througha conduit 32 to an auxiliary condenser, or it may be delivered through aconduit 33 to the inlets of the two' main turbines. 'Ihe exhaust fromthe main turbine 11 may be delivered through a conduit 34 to the inletof the other main turbine 10, thus the -two main turbines may beoperated alone, and both on high pressure steam or may be operatedalone, one as a low pressure turbine taking the exhaust from'the othermain turbine.

At'cruising speed, the two main turbines may' work in parallelv on theexhaust from the second cruising turbine 26 or maybe Sto pcd, and theexhaust delivered from the tur ine 26 to the condenser. At high speed,the two main turbines may workon the steam either in parallel or series.For going. backward, the cruising tiubines may be thrown out, and thehydraulic power transmitters reversed so that only the main turbines arein operation. For going backward, Qnecruisingturbine may drive in thereverseddirection to: that of the other as described in connection withFig. 2. I may, if desired, place the gears between the hyand the mainturbines, and with this arrangement, the cruising turbines may both andthe direction of rotation reversed in the hlydraulic power'transmittersto back the s 1p. f

Foi* a three propeller ship, I may provide the-plant shown in Fig. 4.which involves merely'a duplication of parts, and it is not thoughtnecessary to describe the various possible arrangement in detail.

The three cruising turbines 18, 26, and 35 areillustrated as connectedin series in the steam circuit, and the three main turbines 10, 11, and`36 are also illustrated as being arranged in series in, the same steamcircuit. The necessary piping may be provided for operating them inparallel, 0r in part paras described in connec` tion with Figs. 2 and 3.For cruising, the main turbines may remain at rest or may operate on theexhaust steam from the cruisingA turbines. and `for backing the cruisingturbines may be used, alone or in connection with the main turbines orthe main turbines may be used alone.

-Having thus described my invention, I

IBG

claim as'new and desire to secure by Letl ters Patent: 4 1

. l. A power fplaiit including two driven membei's, two main-turbines,two hydraulic power transmitters eachserving to transmit power from aturbine'to its corresponding driven member, an auxiliary turbine,

means for transmitting the power from said last mentioned turbine to onedriven member and means for delivering the exhaust Afrom said lastmentioned turbine to the main.. turbine of the kother shaft.

2. A power plant for ships including a plurality of propellers, acorresponding 'number of main turbines, a plurality of hydraulic powertransmitters yeach serving to transmit powerl from a turbine to itscorresponding propeller, an auxiliary turbine, means for transmittingthe power from said last mentioned lturbine to one propeller and meansfor-delivering the exhaust from said last mentioned turbine to the mainturbine of the other shaft.` i f 3. A power plant for ships, including aplurality of propellers, a corresponding number of independentlyoperable main turbines, a corresponding number of hydraulicpowertransmitters each being disposed between a turbine and its.corresponding propeller, an auxiliary turbine, and detachable drivingconnections for transmitting the power -from said last mentioned turbinetoone of said propellers.

4. A power plant for ships, including two propellers, two main turbines,and two hydraulic power transmitters each serving to transmit power froma turbine to its corresponding propeller, an auxiliary turbine, anddetachable power connections for said rlast mentioned turbine wherebyone of said propellers may be vdriven by either its main turbine or bysaid auxiliary turbine, or both.

5. A power plant including two driven members, twomain turbines, eachdelivering its power to the corresponding driven member, an auxiliaryturbine, and detachable power connections for operatively connectingsaid last mentioned turbine to drive one of said driven members.

v(i. AV power plant having a plurality of -driven members, s aid powerplant comprising a plurality of main turbines, each delivering its powerto the corresponding driven member, an auxiliary turbine, and

drivingvconnections for operatively connect- I ing said last mentionedturbine and one of said driven members and means for delivering theexhaust from said last mentioned turbine to one of said main turbines. A

' 7. A power plant for ships, including a plurality of units eachincluding a main turbine, a propeller, a hydraulic power transmittingconnection between the two, an auxiliary turbine', and gearing betweensaid; auxiliary turbine and thejpropeller of first mentioned turbinesthe saine unit, and means for delivering the exhaust steam from theauxiliary turfoine of one unit to the main turbine of another unit. 8. Apower plant for ships, including two units, yeach including a propeller,a main Aturbine therefor, ahydraulic power trans mitter between the mainturbine and said propeller, an auxiliary turbine and driving connectionsbetween said auxiliary tui bine and said propeller, the auxiliaryturbine of oneunit lbeing adaptedv for forward drive and the auxiliaryturbine of the other unit Y i chanical gearing for transmitting powervfrom said high pressure turbine to said shaft, a hydraulic powertransmitter for deliveringpower from said low pressure turbine to saidshaft, a third turbine, having a separate driven shaft, and a hydraulicpower transmitter therebetween, and means for delivering the exhaustfrom=one ofthe two to said last. mentioned turbines.

11. A turbine Vplant including two main y i turbines, two separatepropellers, hydraulic power transmitters, between each mainturbine andits propeller, two auxiliary turbines, mechanical said propellers, meansvfor delivering steam to said last mentioned turbines in series,

and means for delivering the exhaust from thelast of said rlastmentioned turbinesto one or both of said first mentioned turbines.

12. A turbine plant including two main turbines, two separate drivenmembers, hydraulic power main turbine and its driven member, a thirdturbine,V mechanical gearing for transmitting powerfrom said lastmentioned turbine to one of said driven members and means for deliveringthe exhaust from said last mentionedtui-bine to one or both of saidfirst mentioned turbines. Y

13. A power plant for ships, including two units, each including apropeller, a main turbine therefor, an auxiliary turbine andI normallydisengaged driving connections between said auxiliary turbine and saidpropeller, the auxiliary turbine ,of one unit benig adapted for, forwarddrive and the auxgearing for transmittingy power from said lastmentioned turbines to transmitters between each.

iliary turbine of the other unit being designed for backward drive.

14. A turbine plant including two main turbines, two separate drivenmembers, hydraulic vpower transmitters betvveen each main turbine andits driven member, tWo auxiliary turbines, normally disengagedmechanical gearing for from said last mentioned turbines to said drivenmembers, means for delivering steam transmitting power to said last'mentioned turbines in series, and means for delivering vthe exhaustfrom the last of said last mentioned turbines to both of said firstmentioned turbines.

Signed at Hamburg, day of June A. D. 1914.

HEINRICH ADAM ,BOHM. Witnesses:

ERNEsT H. L. MUMMENHOFF, CHARLES H. HALLEY.

Copiers of this patent may be obtained for five cents each, byaddressing theffCommssioner of Patents,

4 Washington, 11C. .v

Germany, this 9th 15

